The Seiko 6309-404B is a watch model based on the 6309 movement.
Parts List
| ES2W84GN00 | crystal |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| 86562040 | crystal gasket |
| G1250S | band |
| G1250J | band |
| 09B71ZGH | hand - hour hand |
| 09B71ZGM | hand - minute hand |
| 6309404B61 | others - case |
| 63094105XE14 | others - dial |
| 63094108XE14 | others - dial |
| 63094109XE14 | others - dial |
| 63099 | others - machine code |
| 84320064 | others - dial ring (upper) |
| 84320081 | others - dial ring (lower) |
| A180CS | others - push pin |
| 0801601 | others - date dial |
| 0884931 | others - holding ring for dial |
| 0354601 | others - winding stem |
| DJ0060B01 | others - crown gasket |
| 13SB11NG | others - second hand |
Caliber 6309
